3
votes
2answers
121 views

Printing - When did advertisements in colour became commonplace?

I wonder when colourful advertisements became commonplace in print (such as magazines or occasionally newspapers). I can imagine that colourful printing was far more expensive - so at what point did ...
5
votes
1answer
126 views

Are there any examples of people being able to predict the consequences of communication revolutions?

I often read predictions about future technologies from analysis companies like Gartner Group. These studies often strike me as awfully linear in their view on development. I would, therefore, like to ...